I just got through looking at the online manual at Horizon hobbys and if you will look in section 9 page 28, Section 2 step 2. The right hand picture is a dowel being mounted into what would be the fuselage portion of your wing assy. you can see in the area too the right of the dowel where the leading edge would meet the fuselage, measure from this location to locate Mfg's recommended CG. I have heard of heavy airplanes before but I believe that 1 pound of weight is extreme...I hope that this will help